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PKS 1830–211: VLBA λ7mm Polarization Observations

Published online by Cambridge University Press:  12 April 2016

M. A. Garrett ,
K. Leppänen ,
R. W. Porcas ,
A. R. Patnaik ,
S. Nair  and
Harri Teräsranta
M. A. Garrett
Affiliation:
JIVE, Postbus 2, 7990 AA, Dwingeloo, The Netherlands
K. Leppänen
Affiliation:
JIVE, Postbus 2, 7990 AA, Dwingeloo, The Netherlands
R. W. Porcas
Affiliation:
Max-Planck Institute für Radioastronomie, Bonn, Germany
A. R. Patnaik
Affiliation:
Max-Planck Institute für Radioastronomie, Bonn, Germany
S. Nair
Affiliation:
U. of Manchester, NRAL, Jodrell Bank, Macclesfield, Cheshire, U.K.
Harri Teräsranta
Affiliation:
Metsahovi Radio Research Station, Kylmala, Finland

Abstract

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We present λ7mm multi-epoch and polarization VLBA maps of the gravitational lens PKS 1830–211. The maps suggest that the radio structure of both images evolves rapidly. The offset between the polarized intensity and the total intensity may be used to constrain the magnification matrix.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 164: Radio Emission from Galactic and Extragalactic Compact Sources , 1998 , pp. 313 - 314
Copyright
Copyright © Astronomical Society of the Pacific 1998